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+44-1604-(382000...382999): Northampton, Northamptonshire (NTH) Read more about +44-1604-(382000...382999)
+44-161-(6890000...6899999): Manchester, Manchester (MAN) Read more about +44-161-(6890000...6899999)
+44-1623-(320000...320999): Mansfield, Nottinghamshire (NTT) Read more about +44-1623-(320000...320999)